step1 :Login into MasterGST using same email and password as you registered.
step2 click on Clints Menu . Click on company name in the clients Page.
step3 :by Clicking on company name , it will take you to the company profile. Now click on Configurations.
step4 :Now Click on the E-invoice tab in that page , you can see E-Invoice Configuration in that.
step5 :Click on the edit button. provide API User Name and API Password information provided by the government and Click authenticate Now.
step5 :if the Information provided is currect it will activate your e invoice. you can see the status of the e-invoice in same page which is labeled as Connection Status.